A Doherty Power Amplifier for Ultrasound Instrumentation [PDF]
Sensors, 2023 The ultrasound instrumentation uses linear power amplifiers with low power efficiency, generating unwanted heat and resulting in the deterioration of the echo signal quality of measured targets.
Hojong Choi, Choi Hojong
exaly +6 more sources
Wideband Doherty Power Amplifier: A Design Approach [PDF]
Micromachines, 2022 This paper presents a simple method to design wideband Doherty power amplifiers (DPAs) based on the synthesis of a combiner network which can mimic the response of an ideal compensation of the device reactive output equivalent network and exploit the ...
Jorge Julián Moreno Rubio +2 more
doaj +4 more sources
Design of Inner Matching Three-Stage High-Power Doherty Power Amplifier Based on GaN HEMT Model [PDF]
MicromachinesThis paper introduces the structure and characteristics of an internal-matching high-power Doherty power amplifier based on GaN HEMT devices with 0.25 μm process platforms from the Nanjing Electronic Devices Institute.
Renyi Li +3 more
doaj +2 more sources
Multi-Objective Optimization Design of Doherty Power Amplifier Circuits Based on Non-Dominated Sorting Genetic Algorithm-II [PDF]
MicromachinesConventional optimization algorithms face challenges such as lengthy computation times, premature termination at non-convergent points, and the generation of local optima when addressing multi-objective optimization. A multi-objective optimization method
Hanbin Qu +3 more
doaj +2 more sources
A 3.2–3.6 GHz GaN Doherty Power Amplifier Module Based on a Compact Low-Loss Combiner [PDF]
MicromachinesIn this paper, a 3.2–3.6 GHz two-stage Doherty power amplifier (PA) module is proposed for fifth-generation (5G) massive multiple-input multiple-output (MIMO) base stations.
Xiyu Wang +6 more
doaj +2 more sources
A Comparative Analysis of Doherty and Outphasing MMIC GaN Power Amplifiers for 5G Applications [PDF]
Micromachines, 2023 A comparison between a fully integrated Doherty power amplifier (DPA) and outphasing power amplifier (OPA) for fifth Generation (5G) wireless communications is presented in this paper. Both amplifiers are integrated using pHEMT transistors from the OMMIC’
Victoria Díez-Acereda +3 more
doaj +2 more sources
Design of Ultra-Wideband Doherty Power Amplifier Using a Modified Combiner Integrated with Complex Combining Impedance [PDF]
Sensors, 2023 To be compatible with future wireless communication systems, it is very necessary to extend the bandwidth of the Doherty power amplifier (DPA). In this paper, a modified combiner integrated with a complex combining impedance is adopted to enable an ultra-
Jian Chen +3 more
doaj +2 more sources
Design of a Doherty Power Amplifier for GSM Systems
Tikrit Journal of Engineering Sciences, 2011 This paper presents the design and analysis of Doherty power amplifier. The Doherty amplifier is used in a base station for mobile system because of its high efficiency.
Saad Wasmi Osman Luhaib
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Inverted asymmetric Doherty power amplifier driven by two-stage symmetric Doherty amplifier
Electronics Letters, 2010 A new high efficiency Doherty structure for code division multiple access 2000 1×3-FA test signal is presented. The proposed Doherty structure consists of a two-stage symmetric Doherty drive amplifier and an inverted asymmetric Doherty power amplifier.
S.H. Chun, D.H. Jang, J.Y. Kim, J.H. Kim
exaly +2 more sources
Compact Asymmetrical Quasi-MMIC Doherty Power Amplifier [PDF]
Journal of Electromagnetic Engineering and Science, 2023 This paper presents a compact asymmetrical Doherty power amplifier (PA) based on a quasi-MMIC configuration for 5G sub-6 GHz applications. The proposed Doherty PA is composed of commercial GaN HEMTs and several passive components implemented on a silicon
Hong-Sun Yoon +4 more
doaj +1 more source